18992890

18,992,890 is an even composite number composed of five prime numbers multiplied together.

What does the number 18992890 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

18992890 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 18992890:

2 × 5 × 7² × 83 × 467

(2 × 5 × 7 × 7 × 83 × 467)

See below for interesting mathematical facts about the number 18992890 from the Numbermatics database.

Names of 18992890

Cardinal: 18992890 can be written as Eighteen million, nine hundred ninety-two thousand, eight hundred ninety.

Scientific notation

Scientific notation: 1.899289 × 10⁷

Factors of 18992890

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 564

Divisors of 18992890

Number of divisors d(n): 48
Complete list of divisors:
1 2 5 7 10 14 35 49 70 83 98 166 245 415 467 490 581 830 934 1162 2335 2905 3269 4067 4670 5810 6538 8134 16345 20335 22883 32690 38761 40670 45766 77522 114415 193805 228830 271327 387610 542654 1356635 1899289 2713270 3798578 9496445 18992890
Sum of all divisors σ(n): 40334112
Sum of proper divisors (its aliquot sum) s(n): 21341222
18992890 is an abundant number, because the sum of its proper divisors (21341222) is greater than itself. Its abundance is 2348332

Bases of 18992890

Binary: 1001000011100111011111010₂
Hexadecimal: 0x121CEFA
Base-36: BB30A

Squares and roots of 18992890

18992890 squared (18992890²) is 360729870552100
18992890 cubed (18992890³) is 6851302751110274569000
The square root of 18992890 is 4358.0832942935
The cube root of 18992890 is 266.8068759199

Scales and comparisons

How big is 18992890?

18,992,890 seconds is equal to 31 weeks, 2 days, 19 hours, 48 minutes, 10 seconds.
To count from 1 to 18,992,890 would take you about forty-seven weeks!

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
A cube with a volume of 18992890 cubic inches would be around 22.2 feet tall.

Recreational maths with 18992890

18992890 backwards is 09829981
The number of decimal digits it has is: 8
The sum of 18992890's digits is 46
More coming soon!

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The information we have on file for 18992890 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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